Finding the Fourth Proportional to 5,156.16, 7,116.96 and 3,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,156.16 : 7,116.96 = 3,061.76 : x
2. Step 2: Convert to fraction form
   5,156.16/7,116.96 = 3,061.76/x
3. Step 3: Cross multiply
   5,156.16x = 7,116.96 × 3,061.76
4. Step 4: Simplify right side
   5,156.16x = 21,790,423.45
5. Step 5: Solve for x
   x = 21,790,423.45/5,156.16
6. Step 6: Final answer
   x = 4,226.10